Fuel oil discharged to the diesel engine cylinder is atomized at the （）

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• The amount of expansion space to be left in a fuel tank when fuel oil is being received, is determined by the （）.

  A . quantity of fuel to be received B . flash point of the fuel as it is received C . fuel temperature as it is received D . viscosity of the fuel being received

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• Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?（）

  A . Commence draining that tank as quickly as possible B . Seal off all vents to that tank C . Activate the CO system to that tank D . Shut off the steam heating coil

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• To ensure oil purifier working in normal condition,the interval between two sludge discharging should not exceed（） hours.

  A . A.2 B . B.4 C . C.5 D . D.6

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• The ash content of a fuel oil is significant to the operating engineer because it （）

  A . is an indication of the amount of noncombustible material present in the oil B . indicates the quantity of energy released by burning a unit amount of the fuel C . is useful for determining proper atomization temperatures D . reflects the overall thermal efficiency of the fuel oil service system

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• To receive oil residues from the purification of fuel and lubricating oils in the machinery spaces, what kind of tank(s) should be provided on board?（）

  A、bilge tank B、sludge tank . C、overflow tank D、oil collecting tank

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• When discharging an oil cargo，the first consideration is to（）.

  A . get the bow up B . discharge from the wings first C . discharge from the centerline tanks first D . discharge from amidships first

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• Seamless mild steel is used for steam (also copper for moderate pressure and temperature), h-pair, feed discharge and all oil fuel pressure pipingsAccording to the above sentence, which of the following statements is not true?（）

  A . Both seamless mild steel and copper may be used for middle pressure steam B . "hpair" means high pressure air C . The feed piping of the boilers can be made of seamless mild steel D . All oil pipings are made of mild steel

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• When you are transferring fuel oil to the setting tanks, precautions to be observed should include （）

  A . plugging gooseneck tank vents to prevent accident overflow B . maintaining a high transfer rate until a slight trickle of oil is observed flowing from the overflow line C . sounding the tanks frequently and reducing the transfer rate as the level approaches maximum fill D . maintaining a supply of chemical dispersant to cleanup minor oil spills adjacent to the shi

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• The word "discharge" as used in Pollution Prevention Regulations applies to oil （）.

  A . leaked into navigable waters B . poured into navigable waters C . pumped into navigable waters through a fixed piping system D . all of the above

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• When centrifuging heavy fuel oil, an important factor to consider is the （） (1) flow rate (2) viscosity of the fuel oil

  A . (1) only is correct B . (2) only is correct C . both (1) and (2) are correct D . neither (1) or (2) are correct

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• Which of the following operations need to be entered on the Oil Record Book Part I? （） (1) Ballast of fuel oil tanks (2) Condition of oil discharge monitoring and control system

  A . （1）only B . （2）only C . both（1）and（2） D . neither（1）nor（2）

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• Which of the following operations need NOT to be entered on the Oil Record Book Part I?（） (1) Disposal of oil residues (2) Internal transfer of fuel oil

  A . （1）only B . （2）only C . both（1）and（2） D . neither（1）nor（2）

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• Fuel oil is thought to be one of the main factors （） the operation and maintenance of an engine.

  A . have nothing to do with B . having nothing to do with C . have much to do with D . having much to do with

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• Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）

  A . double bottom fuel oil tank temperature B . heater supply steam flow C . pressure of the fuel supplied to the burners D . attemperator steam flow in the heater discharge circuit

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• If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should（）

  A . remove the discharge ring B . re-prime the purifier C . the centrifuge to its proper speed D . install an additional discharge ring

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• Oil Pollution Regulations require any transfer or discharge of oil or oily mixtures to be recorded in the （）

  A . bridge log B . Master’s log C . engine room log D . oil record book

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• To avoid excessive pressures in the fuel oil filling system during bunkering, you should （）.

  A . close the tank filling valves quickly B . top off all tanks at the same time C . rill completely all tanks to less than 95% full D . reduce the loading rate when topping off

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• If you detect oil in the water around your vessel while discharging fuel, the FIRST thing to do is（）.

  A . try to find out where the oil is coming from B . call the Master C . have the pump man check the discharge piping D . shutdown operatio

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• Fuel oil is regularly transferred to the day tank in order to （）

  A . allow impurities to settle out of the fuel B . allow air to escape from the fuel C . make fuel available for immediate use D . all of the above

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• What is the term given to the process of breaking up fuel oil into very fine particles for better combustion?（）

  A . Settling B . Straining C . Spraying D . Atomizing

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• You detect oil around your tank vessel while discharging. The first thing to do is（）.

  A . try to find out where the oil is coming from B . call the master C . have the pumpman check the discharge piping D . shut down operatio

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• Which of the following operations must be entered on the Oil Record Book Part Ⅰ? （） Ⅰ.Routine discharge at sea of bilge water containing oil from the machinery spaces Ⅱ.Bunkering of fuel oil

  A . Ⅰ only B . Ⅱ only C . both Ⅰ and Ⅱ D . neither Ⅰ nor Ⅱ

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• The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated （）

  A . for atomizing B . for centrifuging C . in a storage tank D . in the re-circulating line

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• In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.

  A . a service tank B . a collecting tank C . a sump D . a settling tank

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